PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The problem becomes particularly acute in cities that drain both storm water and sewage into a common set of pipes and conveyances.
http://www.w3.org/ns/prov#wasQuotedFrom
  • citylab.com